Syringe.



' APPLICATION FAILED FEB. Z7. 1907.

UNITED 'STATES ,PATENT oFF-ron.

BENJAMIN. F. GRISENBERRY, OF ELWOOD, INDIANA.

SYRINGE.

To'all whomt may concern: j

Be it known that I, BENJAMIN F. CRrsEN- BERRY, a citizen ofthe United States, residing at Elwood, vin the county of Madison and State of Indiana, have invented a-new and vuseful Syringe, of which the'following is a specification.

This invention relates to syringes of that t e which have areceptacle for holding the so ution to be injected, detachably -connected v to certain .devices partially o erated by the movement of the injected so ution to cause said solution to be discharged from the delivery end of said syringe into the farthest end of the opening, canal, or duct under treatment; to then iiow backward between the syringe nozzle and the wall of the aiiected opening, canal or duct toward the outlet thereof, and to iinally return or be drawn into the receptacle before any of said solution can escape from the cavity under treatment.

To this end the invention `consists of a hollow resilient receptacle from which a tube leads provided with valves which open and close certain outlets and ports under the movement of a' solution forced through the tube when the receptacle is squeezed and then permitted to resume its normal shape.

In order that the construction and operation of the invention may be made clear a" detailed descri tion is herewith presented followed by deihite claims and accompanied by a drawing in which,

Figure 1 -is a view of the syringe partly in elevation and partly in section. Flg. 2 is a cross section on the line 2 2 Fig. 1. Fig. 8 is a view in elevation of the nozzle or delivery'tube detached. Fi 4 is a perspective view of the valves an their connecting stem.

Similar numerals of reference indicate corresponding parts in all the figures of the and a tubular projecting nec 3 on the side opposite the base to neatly close the canal opening and to receive one end of ja nozzle 4' connected to said neck by a slip joint in order that the nozzle may be removed when a medicated solution or otherfliquid is to be laced in the receptacle. To 4strengthen tl'ie receptacle 1 and increase its elasticity, a plu- Specification of Letters Patent. Application filed February 27. 1907. Serial No.l 359.527.

.perpendicular to the axis of the nozzle.

11 of the nozzle.

Patented Dec. 17, 1907.

rality of circumferential ribs 5 are formed integral therewith, as shown.

The nozzle 4 is tubular and comprises an outerv cylindrical end 6, an inner cylindrical end 7 of'greater diameter than the outer end and a frusto-conical connection'S with a nu mber of s aced perforations 9 formed circumferentia ly through its wall, and in a plaIne n.- tegral with or attached to the outside of the outer end 6 and the truste-conical connection 8 of the nozzle 4 are a series of tapering lribs 10, interspaced between the perforations 9 as clearly represented in Fig. 2. The ribs 10 begin a short distance back from the outlet 11 of the nozzle and extend downwardly in a divergent direction, to the base of the frusto-conical connection 8, extending outwardly at their lower ends a slight way beyond the inner nozzle end 7'. These ribs are to press against the soft parts of the wall of the opening into whichithe nozzle is introduced and hold back from the openings v9 any loose membranes or tissues which would tend to close said openings. Between the ribs are ducts or chambers 12 along which the solution runs to the openings 9 into which the solution enters or is drawn by suction.

. 'ally dis osed within the outer end 6 o the nozzle 4 1s a valve stem 13, on the -extreme end of which is secured avalve 14 adapted, when seated, to close the mouth 11 of the nozzle. The valve 14 is dome shaped .on its outer or exposed side and cone shaped on its inner or under side, to seat firmly and tightly againsttlie inwardly beveled mouth The diameter of the valve 14 is that ofthe outer end 6 of the nozzle and is dome shaped on its exposed face to make easier the introduction of the instrument into a part to be treated.

A. valve 15, loosely supported on the lower end of the valve stem 13 by a screw 16 threaded into the end of said stem, has its periphery inclined at the same angle as the truste-conical section, against which it seats at certain times to close the openings 9.

Passages 17 are formed through the valve 15 stem 13.

said openings. The distance between-the valves 14 and 15 is regulated by turning the valve 14 on the threaded end of the valve /To use the invention, the proper amount of liquid is placed in the rceptacle 1 thro h the neck 3, after which the latter is slippe over the larger end 7 ofthe nozzle. The end 6 of the nozzle is then introduced a suitable distance into the cavity to be treated and the receptacle compressed. The valve 15 irrimediately seats itself, closing the o enings 9 to prevent the escape of any of the iquid therethrough, and the valve 14 opens so ythat the solution which has passed freely through the passages 17 may come in contact with the most distant parts of the a'fcted part. ter ejecting the solution, the receptacle is allowed to resume its normal form which produces a suction in the nozzle 4, closing the nozzle 14 and retracting the valve -15. The openings 9 are thereb uncovered and the suction draws the liquid, running down the channels 12 and in contact with the Walls of the diseased cavity, through said openings into the receptacle again, thereby preventnear its inner end with an inlet opening for fluid to,` pass to the bulb, both openin s communicatmg with the-single passage of t e nozzle, valve seats at said openings, and a air of connected valves arranged to close in a ternation on compression and release of said bulb..

near its eXtremev end with a discharge opening for fluid from the bulb and.

'2. A syringe comprising a resilient compressible rece tacle, a nozzle having at each end a bore o .different diameter connected A by a tapering valve seat the latter being erforated, an external and an internal valve oosely connected by a stem and adapted to operate alternativelT to seat themselves, and p external ribs on sai nozzle.

f 3. A syringe compris' a resilient, compressible receptacle, a nozz e having a bore at lone end larger thanthat at the other, said bores being connected by a tapern valve seat havin circumferential opemngst o h the Wall o? said seat, a valve for closing t e smaller bore of said nozzle having a valve stem, and a valve having passages therethrough loosely mounted on the inner end of said stem and adapted to close said circumferential openings.

4. A syringe comprisin a resilient, compressible receptacle, a nozz e having a bore'at one end larger than that kat the other, said bores being connected by a'. 'ta erin valve seat ha. Vcircumferential openmgst o h the wall o said seat, a valve for closing t e smaller bore of said nozzle having a valve stem, a valve having* assages therethrough l loosely mounted on t e, innerA end ofsaid stem and adapted to close said circumferential openings, and a series of longitudinally disposed tapering ribs onjthe'outside of said nozzle arranged to form channels leading to said circumferential o enings.

In testimony that. cl "im the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

BENJAMIN cRIsENBERRY. Witnesses: I. H. WELDoN,fj,1-I'/ W. T. Son'rw/nr.. 

